my general feeling at 11s and 22s in these spots is that a push is FAR more +EV than the 3xBB raise (now, i have never used SNGPT... this is just my feeling after lots of iteration).

lots of folks in these games will call away 450, even if they've only got 1100 left -- with AK/AQ/AJ or even KQ. needless to say, some of those hands will beat you on the flop every now and again.

naturally, those same hands will occassionally beat you on the flop if they call your push; it's just that they're less likely to call your push than your 450.